- Langan Engineering and Environmental Services General Aptitude Interview Questions
- Langan Engineering and Environmental Services Trainee Interview Questions
- Langan Engineering and Environmental Services Personal Questions round Interview Questions
- Langan Engineering and Environmental Services HR Interview Questions
- Langan Engineering and Environmental Services Lead Interview Questions
Ques:- Two taps can separately fill a cistern 10 minutes and 15 minutes respectively and when the waste pipe is open, they can together fill it in 18 minutes. The waste pipe can empty the full cistern in?
Ques:- 3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thieves and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?
Ques:- What is your professional goal?
Ques:- Steam is a vapour or a gas ?
Ques:- You are not from accounts background, how would you manage?
Ques:- When you are part of a team that is working exceptionally well, what do you think the reasons are for its success?
Ques:- Tell me about the most fun you have had on the job.
Ques:- Achievements as a head in last companies
Ques:- Can you describe for me one or two of your most important accomplishments?
Ques:- Where have you worked before?
Ques:- Why are you leaving your current employment?
Ques:- A gardener wants to plant trees in his garden in such a way that the number of trees in each row should be the same. If there are 4 rows or 5 rows or 6 rows, then no tree will be left. Find the least number of trees required.
Ques:- Can you name three consecutive days without using the words Wednesday, Friday, or Saturday?
Recent Answer : :
Sunday
Monday
Tuesday
Ques:- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is?
Recent Answer : :
8/15 left.
1/15 * 4 + 1/20 * 4 = 7/15
1 – 7/15 = 8/15
Ques:- Why you choose this bank?
Ques:- How long does a train 165 meters long running at the rate of 54 kmph take to cross a bridge 660 meters in length?
Recent Answer : :
Speed of train = 54km/hr
= 54 x (5/18) m/s
= 15 m/s
Length of train = 165m
Time required to cross a bridge of 660m in length = (660+165) / 15
= 55 seconds
Ques:- Can you be able to cope up with other languages?
Ques:- The C.I. on a certain sum for 2 years Rs.41 and the simple interest is Rs.40. What is the rate percent?
Ques:- Qualification & Family Background? Total years of Experience? Why want to leave current Job.
Ques:- The smallest number when increased by ” 1 ” is exactly divisible by 12, 18, 24, 32 and 40 is:
Recent Answer : :
lcm (12,18,24,32,40) – 1
1440-1 = 1439
Ques:- How much expenditure on petrol and diesel in india per day?
Ques:- What is Learning?
Ques:- If in a certain code, TEACHER is written as VGCEJGT, how would DULLARD be written in the same code ?
Recent Answer : :
TEACHER is written as VGCEJGT, how would DULLARD ?
T value is 19
V value is 21 ,
here we get to know that there is difference of 1 letter between them.
Answer: FWNNCTF.
Ques:- Why do you want to work with IBM?
Ques:- Do you think that technology can help to achieve better efficiency at work? And can you give me an example to explain your thinking?
Recent Answer : :
Yes, technology give me better efficiency to my work. Just we have take a work piece of sheet metal to convert in product like is box, different size, where manually it’s complete on 3 to 4 days but with the help of technology I have done in 3 hours that’s I said the technology give better efficiency to my better work.
Ques:- Three types of tea the a,b,c costs Rs. 95/kg,100/kg and70/kg respectively. How many kgs of each should be blended to produce 100 kg of mixture worth Rs.90/kg, given that the quntities of band c are equala)70,15,15 b)50,25,25 c)60,20,20 d)40,30,30
Recent Answer : :
B
Ques:- You have 20 white and 13 black balls in a bag. You pull out 2 balls one after another. If the balls are of same color, then you replace them with a white ball ? but if they are of different color, you replace them with a black ball. Once you take out the balls, you do not put them back in the bag ? so the balls keep reducing. What would be the color of the last ball remaining in the bag?
Recent Answer : :
white
Ques:- Three years ago the average age of a family of six members was 19 years. A boy have been born, the average age of the family is the same today. What is the age of the boy?
Recent Answer : :
47
Ques:- A man pushed his car to a hotel and lost his fortune. What happened?
Ques:- If in a certain language, MADRAS is coded as NBESBT, how is BOMBAY coded in that code?
Recent Answer : :
CPNCBZ
Total 60 trees
4 rows each with 15 trees
5 rows each with 12 trees
6 rows each with 10 trees